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  Re: New primitives?
 
(...) There are already circle chord and tangent primitives on the parts tracker. You would just need to add a couple of triangles to get the ones you're proposing. See: (2 URLs) (17 years ago, 30-Mar-08, to lugnet.cad, FTX)
 
  Re: New primitives?
 
(...) I wasn't aware of the tang primitive, and I had forgotten about the chrd primitive. Going from the chrd primitive to the proposed truncated disc requires the addition of one triangle, and the total number of triangles after adding that one is (...) (17 years ago, 30-Mar-08, to lugnet.cad, FTX)
 
  Re: New primitives?
 
(...) Andrew you are completely right. I was kind of obsessed by the missing triangle so I didn't thought well... I'm a little bit less convinced by the tang primitive that need several adaptation triangles (is it really better than to match (...) (17 years ago, 31-Mar-08, to lugnet.cad)

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